Date: Sun, 26 Jul 1998 20:30:00 -0700 (PDT) From: Matt Dillon <dillon@best.net> To: freebsd-bugs@FreeBSD.ORG Subject: Re: kern/7403: splimp/splnet interrupt race in ip_drain Message-ID: <199807270330.UAA18871@freefall.freebsd.org>
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The following reply was made to PR kern/7403; it has been noted by GNATS.
From: Matt Dillon <dillon@best.net>
To: David Greenman <dg@root.com>
Cc: FreeBSD-gnats-submit@FreeBSD.ORG
Subject: Re: kern/7403: splimp/splnet interrupt race in ip_drain
Date: Sun, 26 Jul 1998 20:29:10 -0700 (PDT)
:
: I think the right solution to this problem is to not call m_reclaim() if
:M_DONTWAIT is set. Do you agree?
:
:-DG
:
:David Greenman
:Co-founder/Principal Architect, The FreeBSD Project
Yah, that makes more sense.
Refresh my memory please: Is ip_input() called at splimp() or splnet() ?
If it's called from an interrupt there are other race conditions beyond
m_retry() that we have to worry about.
-Matt
Matthew Dillon Engineering, HiWay Technologies, Inc. & BEST Internet
Communications.
<dillon@best.net> (Please include portions of article in any response)
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